EP0423357A4 - Device for controlling servo motor - Google Patents

Device for controlling servo motor

Info

Publication number
EP0423357A4
EP0423357A4 EP19900905676 EP90905676A EP0423357A4 EP 0423357 A4 EP0423357 A4 EP 0423357A4 EP 19900905676 EP19900905676 EP 19900905676 EP 90905676 A EP90905676 A EP 90905676A EP 0423357 A4 EP0423357 A4 EP 0423357A4
Authority
EP
European Patent Office
Prior art keywords
value
motor
speed
feedback loop
negative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19900905676
Other languages
French (fr)
Other versions
EP0423357A1 (en
EP0423357B1 (en
Inventor
Yoichi Kokura Plant Kk Yaskawa Denki Yamamoto
Takayuki Kokura Plant Kk Yaskawa Denki Tohya
Yoshiji Tokyo Plant Kk Yaskawa Denki Hiraga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Publication of EP0423357A1 publication Critical patent/EP0423357A1/en
Publication of EP0423357A4 publication Critical patent/EP0423357A4/en
Application granted granted Critical
Publication of EP0423357B1 publication Critical patent/EP0423357B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
    • G05B19/23—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control
    • G05B19/231—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude
    • G05B19/237—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude with a combination of feedback covered by G05B19/232 - G05B19/235
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
    • G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
    • G05B19/21—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device
    • G05B19/23—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control
    • G05B19/231—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path using an incremental digital measuring device for point-to-point control the positional error is used to control continuously the servomotor according to its magnitude
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/37—Measurements
    • G05B2219/37313—Derive speed from position
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/41—Servomotor, servo controller till figures
    • G05B2219/41084—Compensation speed axis with changing, reversing direction, quadrant circle
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/41—Servomotor, servo controller till figures
    • G05B2219/41421—Eliminate, diminish delay in feedback speed
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42034—Pi regulator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42035—I regulator
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42062—Position and speed and current
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/42—Servomotor, servo controller kind till VSS
    • G05B2219/42096—Add, substract i part of speed feedback as function of sign speed error

Abstract

Generally, in a machine provided with a servo motor controller which has a position feedback loop, a speed feedback loop, and a current feedback loop, a current instruction value is preset to the voltage that corresponds to the frictional torque at the time when the motor starts to rotate and/or when the direction of rotation is reversed in order to compensate the delay of response of the motor caused by the frictional torque. According to the invention relating to an improvement in this technology, the value of an integration element constituting the speed control unit is inverted according to a function after the speed instruction of the motor has changed from a positive value to a negative one or vice versa, or after a measured speed of the motor has changed from a positive value to a non-positive one or from a negative value to a non negative one. The output value is then added to the current instruction value or to the integration term thereof, thereby improving the delay in response and decreasing errors in the machine working.
EP90905676A 1989-04-10 1990-04-06 Device for controlling servo motor Expired - Lifetime EP0423357B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9164089 1989-04-10
JP91640/89 1989-04-10
PCT/JP1990/000472 WO1990012448A1 (en) 1989-04-10 1990-04-06 Device for controlling servo motor

Publications (3)

Publication Number Publication Date
EP0423357A1 EP0423357A1 (en) 1991-04-24
EP0423357A4 true EP0423357A4 (en) 1993-03-17
EP0423357B1 EP0423357B1 (en) 1996-07-03

Family

ID=14032126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90905676A Expired - Lifetime EP0423357B1 (en) 1989-04-10 1990-04-06 Device for controlling servo motor

Country Status (4)

Country Link
US (1) US5134354A (en)
EP (1) EP0423357B1 (en)
DE (1) DE69027648T2 (en)
WO (1) WO1990012448A1 (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2826391B2 (en) * 1991-05-24 1998-11-18 ファナック株式会社 Backlash acceleration control method
JP2875646B2 (en) * 1991-07-04 1999-03-31 ファナック株式会社 Backlash acceleration correction device
JP2833730B2 (en) * 1993-03-10 1998-12-09 三菱電機株式会社 Position control device
JPH06332538A (en) * 1993-05-19 1994-12-02 Fanuc Ltd Flexible servo control method
US5384526A (en) * 1993-07-13 1995-01-24 Wangdat, Inc. PI or PID control loop with self-limiting integrator
US5804940A (en) * 1994-04-08 1998-09-08 Siemens Aktiengesellschaft Device designed to compensate for non-linearity of machine shafts
TW272336B (en) * 1995-03-28 1996-03-11 Mitsubishi Electric Corp Electric motor controlling device
JP3509413B2 (en) * 1995-10-30 2004-03-22 株式会社デンソー Motor control device
US5744926A (en) * 1996-11-04 1998-04-28 Industrial Technology Research Institute Servo motor positioning control and position recording chip device
JP3823455B2 (en) * 1997-07-08 2006-09-20 フジノン株式会社 Automatic control device
IL127370A (en) * 1998-12-02 2004-05-12 Yaskawa Eshed Technology Ltd Servomechanism control system and method
JP3857054B2 (en) * 1999-05-14 2006-12-13 三菱電機株式会社 Servo control device
JP4491904B2 (en) * 2000-04-19 2010-06-30 株式会社安川電機 Electric motor position control device
DE60006666T2 (en) * 1999-06-04 2004-04-15 Kabushiki Kaisha Yaskawa Denki, Kitakyushu POSITION CONTROL FOR A MOTOR
JP3912286B2 (en) * 2000-11-01 2007-05-09 三菱電機株式会社 Servo control method and apparatus
KR100805242B1 (en) * 2001-07-06 2008-02-21 삼성전자주식회사 Controlling system and method for servomotor
JP3840429B2 (en) * 2002-04-30 2006-11-01 オークマ株式会社 Position control device
JP3850363B2 (en) * 2002-10-21 2006-11-29 山洋電気株式会社 Motor position control device
JP3923047B2 (en) * 2003-03-04 2007-05-30 ファナック株式会社 Synchronous control device
EP1652634B1 (en) * 2003-07-29 2011-12-28 Panasonic Corporation Robot arm control method and control device
US6870345B1 (en) * 2003-09-26 2005-03-22 Texas Instruments Incorporated Servo loop PID compensator with embedded rate limit
FR2881004B1 (en) * 2005-01-14 2007-04-06 Arvinmeritor Light Vehicle Sys METHOD FOR DETERMINING THE CHANGE OF THE DIRECTION OF ROTATION OF AN ENGINE
US7187152B1 (en) * 2005-10-14 2007-03-06 Delta Electronic Inc. AC servo drive without current sensor
US7710061B2 (en) * 2006-08-07 2010-05-04 The Board Of Trustees Of The Leland Stanford Junior University Motor control amplifier
SE530380C2 (en) * 2006-10-03 2008-05-20 Abb Ab Automatic estimation of glitches
JP4620148B2 (en) 2008-10-15 2011-01-26 ファナック株式会社 Servo motor control device
CN101875199B (en) * 2009-04-30 2013-03-06 浙江中科德润科技有限公司 Reduction gear and control method thereof
US20110243537A1 (en) * 2010-02-16 2011-10-06 Wilson Robert P Motion control of impedance-type haptic devices
US9124212B2 (en) * 2011-05-31 2015-09-01 Mitsubishi Electric Corporation Load characteristic estimating apparatus for driving machine
JP2018092357A (en) * 2016-12-02 2018-06-14 ファナック株式会社 Servo motor control apparatus, servomotor control method, and computer program

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292575A1 (en) * 1986-12-12 1988-11-30 Fanuc Ltd. Servo motor controller
EP0292574A1 (en) * 1986-12-12 1988-11-30 Fanuc Ltd. Numerical controller

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912313A (en) * 1972-02-29 1974-02-02
JPS5771282A (en) * 1980-10-20 1982-05-04 Fanuc Ltd Servo motor controller
DE3590662T1 (en) * 1984-12-22 1987-02-19
JPS6294249A (en) * 1985-10-17 1987-04-30 Fanuc Ltd Speed controlling system
US4882526A (en) * 1986-08-12 1989-11-21 Kabushiki Kaisha Toshiba Adaptive process control system
US4999557A (en) * 1988-05-02 1991-03-12 Shinko Electric Co., Ltd. Integration proportional controller in servo-control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292575A1 (en) * 1986-12-12 1988-11-30 Fanuc Ltd. Servo motor controller
EP0292574A1 (en) * 1986-12-12 1988-11-30 Fanuc Ltd. Numerical controller

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 6, no. 147 (E-123)(1025) 6 August 1982 & JP-A-57 071 282 ( FUJITSU FANUC K.K. ) 4 May 1982 *
See also references of WO9012448A1 *

Also Published As

Publication number Publication date
DE69027648D1 (en) 1996-08-08
EP0423357A1 (en) 1991-04-24
US5134354A (en) 1992-07-28
DE69027648T2 (en) 1997-02-27
EP0423357B1 (en) 1996-07-03
WO1990012448A1 (en) 1990-10-18

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